package Example;
class Student7{
    private String name;
    private int age;
    public Student7(){}
    public Student7(String n){
        name = n;
    }
    public Student7 (String n, int a){
        name = n;
        age = a;
    }
    public void read(){
        System.out.println("我是："+name+", 年龄"+age);
    }
}
public class Example07 {
    public static void main(String[] args) {
        Student7 stu1 = new Student7("张三");
        Student7 stu2 = new Student7("张三",18);
        stu1.read();
        stu2.read();

    }
}
